/* Aplico la tipografía al body o al header */
body, header {
font-family: 'Roboto', sans-serif;
}
 
/* Mantener el header fijo */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: #fff;
  border-bottom: 4px solid #f0f0f0;
  height: 60px;
  box-sizing: border-box;
}

/* navbar común */
.top-nav {
  max-width: 1200px;
  margin: 0 auto;
  height: 60px;
  position: relative;
}

.nav-left {
  display: flex;
  gap: 20px;
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
}

.nav-left a {
  text-decoration: none;
  color: #888;
  font-weight: 500;
}

.nav-left a.active {
  color: #000;
  font-weight: bold;
}

.nav-center {
  position: absolute;
  left: 20px;
  transform: translateY(-50%);
  top: 50%;
  font-weight: bold;
  font-size: 1.1rem;
  color: #000;
}

@media screen and (max-width: 768px) {
  .welcome-text {
    display: none;
  }
}